The combining form that means umbilicus or navel is "omphal/o." It is often used in medical terminology to refer to conditions, procedures, or anatomy related to the umbilical region. For example, "omphalitis" refers to inflammation of the umbilical area.
The combining form hist/o means
Xeno- is the combining form meaning strange or other.
Combining form derm/o means: skin
The combining form that means "nail" is onych/o.
Combining form for shape
A hump is not a medical term, so I can't give you the correct combining form.
The prefix hepta- means seven.
The combining form that means hidden is "crypt-" as in "cryptic" or "cryptology."
The medical terminology combining form for "rapid" is "tachy-." For instance, tachycardia is abnormally rapid heartrate.
The combining word is sphygum
Spleno means spleen in medical terminology.Spleno- is already the combining form. It is the combining form for the spleen.
Nitrogen- is the combining form for nitrogen. For instance, nitrogenous means containing or related to nitrogen.